in platform/broadcom/sonic-platform-modules-accton/as9716-32d/utils/accton_as9716_32d_monitor.py [0:0]
def manage_fans(self):
global fan_policy_state
global fan_policy_alarm
global send_yellow_alarm
global send_red_alarm
global fan_fail
global count_check
global test_temp
global test_temp_list
global temp_test_data
global test_temp_revert
CHECK_TIMES=3
LEVEL_FAN_INIT=0
LEVEL_FAN_MIN=1
LEVEL_FAN_MID=2
LEVEL_FAN_MAX=3
LEVEL_FAN_DEF=LEVEL_FAN_MAX
LEVEL_FAN_YELLOW_ALARM=4
LEVEL_FAN_RED_ALARM=5
LEVEL_FAN_SHUTDOWN=6
fan_policy_f2b = { #AFO
LEVEL_FAN_MIN: [50, 0x7],
LEVEL_FAN_MID: [75, 0xb],
LEVEL_FAN_MAX: [100, 0xf]
}
fan_policy_b2f = { #AFI
LEVEL_FAN_MID: [75, 0xb],
LEVEL_FAN_MAX: [100, 0xf]
}
afi_thermal_spec={
"mid_to_max_temp":[61500, 51500, 49400, 49400, 45100, 46750, 48000, 38500],
"max_to_mid_temp":[57000, 47300, 45000, 45100, 40750, 42100, 44000, 35000]
}
afo_thermal_spec={
"min_to_mid_temp": [70000, 66000, 68000, 62000, 62000, 67000, 77000, 50000],
"mid_to_max_temp": [67000, 62000, 65000, 59000, 58500, 63000, 69000, 49000],
"max_to_mid_temp": [59000, 53500, 55300, 50300, 50000, 52500, 59000, 41100],
"mid_to_min_temp": [55800, 50500, 51100, 47600, 45750, 50100, 57000, 36600],
"max_to_yellow_alarm": [68000, 64000, 65000, 61000, 60000, 64000, 70000, 68000],
"yellow_to_red_alarm": [72000, 68000, 69000, 65000, 64000, 68000, 74000, 72000],
"red_alarm_to_shutdown": [77000, 73000, 74000, 70000, 69000, 73000, 79000, 77000]
}
thermal_val=[0,0,0,0,0,0,0,0]
max_to_mid=0
mid_to_min=0
fan = FanUtil()
if fan_policy_state==LEVEL_FAN_INIT:
fan_policy_state=LEVEL_FAN_MAX #This is default state
logging.debug("fan_policy_state=LEVEL_FAN_MAX")
return
count_check=count_check+1
if count_check < CHECK_TIMES:
return
else:
count_check=0
thermal = ThermalUtil()
fan_dir=1
fan_dir=fan.get_fan_dir(1)
if fan_dir==1: # AFI
fan_thermal_spec = afi_thermal_spec
fan_policy=fan_policy_b2f
elif fan_dir==0: # AFO
fan_thermal_spec = afo_thermal_spec
fan_policy=fan_policy_f2b
else:
logging.debug( "NULL case")
ori_duty_cycle=fan.get_fan_duty_cycle()
new_duty_cycle=0
if test_temp_revert==0:
temp_test_data=temp_test_data+2000
else:
temp_test_data=temp_test_data-2000
if test_temp==0:
for i in range (thermal.THERMAL_NUM_1_IDX, thermal.THERMAL_NUM_MAX+1):
thermal_val[i-1]=thermal._get_thermal_val(i)
else:
for i in range (thermal.THERMAL_NUM_1_IDX, thermal.THERMAL_NUM_MAX+1):
thermal_val[i-1]=test_temp_list[i-1]
thermal_val[i-1]= thermal_val[i-1] + temp_test_data
fan_fail=0
ori_state=fan_policy_state;
current_state=fan_policy_state;
if fan_dir==1: #AFI
for i in range (0, thermal.THERMAL_NUM_MAX):
if ori_state==LEVEL_FAN_MID:
if thermal_val[i] >= fan_thermal_spec["mid_to_max_temp"][i]:
current_state=LEVEL_FAN_MAX
logging.debug("current_state=LEVEL_FAN_MAX")
break
else:
if (thermal_val[i] <= fan_thermal_spec["max_to_mid_temp"][i]):
max_to_mid=max_to_mid+1
if max_to_mid==thermal.THERMAL_NUM_MAX and fan_policy_state==LEVEL_FAN_MAX:
current_state=LEVEL_FAN_MID
logging.debug("current_state=LEVEL_FAN_MID")
else: #AFO
psu_full_load=check_psu_loading()
for i in range (0, thermal.THERMAL_NUM_MAX):
if ori_state==LEVEL_FAN_MID:
if thermal_val[i] >= fan_thermal_spec["mid_to_max_temp"][i]:
current_state=LEVEL_FAN_MAX
break
else:
if psu_full_load!=True and thermal_val[i] <= fan_thermal_spec["mid_to_min_temp"][i]:
mid_to_min=mid_to_min+1
elif ori_state==LEVEL_FAN_MIN:
if psu_full_load==True:
current_state=LEVEL_FAN_MID
logging.debug("psu_full_load, set current_state=LEVEL_FAN_MID")
if thermal_val[i] >= fan_thermal_spec["min_to_mid_temp"][i]:
current_state=LEVEL_FAN_MID
else:
if thermal_val[i] <= fan_thermal_spec["max_to_mid_temp"][i] :
max_to_mid=max_to_mid+1
if fan_policy_alarm==0:
if thermal_val[i] >= fan_thermal_spec["max_to_yellow_alarm"][i]:
if send_yellow_alarm==0:
logging.warning('Alarm-Yellow for temperature high is detected')
fan_policy_alarm=LEVEL_FAN_YELLOW_ALARM
send_yellow_alarm=1
elif fan_policy_alarm==LEVEL_FAN_YELLOW_ALARM:
if thermal_val[i] >= fan_thermal_spec["yellow_to_red_alarm"][i]:
if send_red_alarm==0:
logging.warning('Alarm-Red for temperature high is detected')
fan_policy_alarm=LEVEL_FAN_RED_ALARM
send_red_alarm=1
elif fan_policy_alarm==LEVEL_FAN_RED_ALARM:
if thermal_val[i] >= fan_thermal_spec["red_alarm_to_shutdown"][i]:
logging.critical('Alarm-Critical for temperature high is detected, shutdown DUT')
fan_policy_alarm=LEVEL_FAN_SHUTDOWN
time.sleep(2)
power_off_dut()
if max_to_mid==thermal.THERMAL_NUM_MAX and ori_state==LEVEL_FAN_MAX:
current_state=LEVEL_FAN_MID
if fan_policy_alarm!=0:
logging.warning('Alarm for temperature high is cleared')
fan_policy_alarm=0
send_yellow_alarm=0
send_red_alarm=0
test_temp_revert=0
logging.debug("current_state=LEVEL_FAN_MID")
if mid_to_min==thermal.THERMAL_NUM_MAX and ori_state==LEVEL_FAN_MID:
if psu_full_load==0:
current_state=LEVEL_FAN_MIN
logging.debug("current_state=LEVEL_FAN_MIN")
#Check Fan status
for i in range (fan.FAN_NUM_1_IDX, fan.FAN_NUM_ON_MAIN_BROAD+1):
if fan.get_fan_status(i)==0:
new_duty_cycle=100
logging.debug('fan_%d fail, set duty_cycle to 100',i)
if test_temp==0:
fan_fail=1
fan.set_fan_duty_cycle(new_duty_cycle)
break
else:
fan_fail=0
if current_state!=ori_state:
fan_policy_state=current_state
new_duty_cycle=fan_policy[current_state][0]
logging.debug("fan_policy_state=%d, new_duty_cycle=%d", fan_policy_state, new_duty_cycle)
if new_duty_cycle!=ori_duty_cycle and fan_fail==0:
fan.set_fan_duty_cycle(new_duty_cycle)
return True
if new_duty_cycle==0 and fan_fail==0:
fan.set_fan_duty_cycle(FAN_DUTY_CYCLE_MAX)
return True